[RFC PATCH 1/1] power: supply: bq27xxx: Call power_supply_changed on status change

From: Merlijn Wajer
Date: Tue Feb 27 2018 - 20:06:49 EST


Signed-off-by: Merlijn Wajer <merlijn@xxxxxxxxxx>
---
drivers/power/supply/bq27xxx_battery.c | 59 +++++++++++++++++-----------------
include/linux/power/bq27xxx_battery.h | 1 +
2 files changed, 30 insertions(+), 30 deletions(-)

diff --git a/drivers/power/supply/bq27xxx_battery.c b/drivers/power/supply/bq27xxx_battery.c
index 0a203672744c..218d153fb431 100644
--- a/drivers/power/supply/bq27xxx_battery.c
+++ b/drivers/power/supply/bq27xxx_battery.c
@@ -1527,6 +1527,31 @@ static int bq27xxx_battery_read_health(struct bq27xxx_device_info *di)
return POWER_SUPPLY_HEALTH_GOOD;
}

+static int bq27xxx_battery_read_status(struct bq27xxx_device_info *di)
+{
+ int status;
+
+ if (di->opts & BQ27XXX_O_ZERO) {
+ if (di->cache.flags & BQ27000_FLAG_FC)
+ status = POWER_SUPPLY_STATUS_FULL;
+ else if (di->cache.flags & BQ27000_FLAG_CHGS)
+ status = POWER_SUPPLY_STATUS_CHARGING;
+ else if (power_supply_am_i_supplied(di->bat) > 0)
+ status = POWER_SUPPLY_STATUS_NOT_CHARGING;
+ else
+ status = POWER_SUPPLY_STATUS_DISCHARGING;
+ } else {
+ if (di->cache.flags & BQ27XXX_FLAG_FC)
+ status = POWER_SUPPLY_STATUS_FULL;
+ else if (di->cache.flags & BQ27XXX_FLAG_DSC)
+ status = POWER_SUPPLY_STATUS_DISCHARGING;
+ else
+ status = POWER_SUPPLY_STATUS_CHARGING;
+ }
+
+ return status;
+}
+
void bq27xxx_battery_update(struct bq27xxx_device_info *di)
{
struct bq27xxx_reg_cache cache = {0, };
@@ -1547,6 +1572,7 @@ void bq27xxx_battery_update(struct bq27xxx_device_info *di)
cache.time_to_full = -ENODATA;
cache.charge_full = -ENODATA;
cache.health = -ENODATA;
+ cache.status = bq27xxx_battery_read_status(di);
} else {
if (di->regs[BQ27XXX_REG_TTE] != INVALID_REG_ADDR)
cache.time_to_empty = bq27xxx_battery_read_time(di, BQ27XXX_REG_TTE);
@@ -1559,6 +1585,7 @@ void bq27xxx_battery_update(struct bq27xxx_device_info *di)
if (di->regs[BQ27XXX_REG_AE] != INVALID_REG_ADDR)
cache.energy = bq27xxx_battery_read_energy(di);
cache.health = bq27xxx_battery_read_health(di);
+ cache.status = bq27xxx_battery_read_status(di);
}
if (di->regs[BQ27XXX_REG_CYCT] != INVALID_REG_ADDR)
cache.cycle_count = bq27xxx_battery_read_cyct(di);
@@ -1570,7 +1597,7 @@ void bq27xxx_battery_update(struct bq27xxx_device_info *di)
di->charge_design_full = bq27xxx_battery_read_dcap(di);
}

- if (di->cache.capacity != cache.capacity)
+ if ((di->cache.capacity != cache.capacity) || (di->cache.status != cache.status))
power_supply_changed(di->bat);

if (memcmp(&di->cache, &cache, sizeof(cache)) != 0)
@@ -1625,34 +1652,6 @@ static int bq27xxx_battery_current(struct bq27xxx_device_info *di,
return 0;
}

-static int bq27xxx_battery_status(struct bq27xxx_device_info *di,
- union power_supply_propval *val)
-{
- int status;
-
- if (di->opts & BQ27XXX_O_ZERO) {
- if (di->cache.flags & BQ27000_FLAG_FC)
- status = POWER_SUPPLY_STATUS_FULL;
- else if (di->cache.flags & BQ27000_FLAG_CHGS)
- status = POWER_SUPPLY_STATUS_CHARGING;
- else if (power_supply_am_i_supplied(di->bat) > 0)
- status = POWER_SUPPLY_STATUS_NOT_CHARGING;
- else
- status = POWER_SUPPLY_STATUS_DISCHARGING;
- } else {
- if (di->cache.flags & BQ27XXX_FLAG_FC)
- status = POWER_SUPPLY_STATUS_FULL;
- else if (di->cache.flags & BQ27XXX_FLAG_DSC)
- status = POWER_SUPPLY_STATUS_DISCHARGING;
- else
- status = POWER_SUPPLY_STATUS_CHARGING;
- }
-
- val->intval = status;
-
- return 0;
-}
-
static int bq27xxx_battery_capacity_level(struct bq27xxx_device_info *di,
union power_supply_propval *val)
{
@@ -1733,7 +1732,7 @@ static int bq27xxx_battery_get_property(struct power_supply *psy,

switch (psp) {
case POWER_SUPPLY_PROP_STATUS:
- ret = bq27xxx_battery_status(di, val);
+ ret = bq27xxx_simple_value(di->cache.status, val);
break;
case POWER_SUPPLY_PROP_VOLTAGE_NOW:
ret = bq27xxx_battery_voltage(di, val);
diff --git a/include/linux/power/bq27xxx_battery.h b/include/linux/power/bq27xxx_battery.h
index e6187f524f2c..4f27656045fd 100644
--- a/include/linux/power/bq27xxx_battery.h
+++ b/include/linux/power/bq27xxx_battery.h
@@ -49,6 +49,7 @@ struct bq27xxx_reg_cache {
int flags;
int power_avg;
int health;
+ int status;
};

struct bq27xxx_device_info {
--
2.16.2